CVE-2026-62857: Fedify: Server-Side Request Forgery in getNodeInfo() Allows Access to Internal Network Resources
fedify-dev · fedify
Affected: fedify-dev · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 37% of scored CVEs
DescriptionCVE.org
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. From version 1.2.0 through the affected 1.9, 1.10, 2.0, 2.1, 2.2, and 2.3 maintenance lines, getNodeInfo() follows an attacker-controlled links[].href value from /.well-known/nodeinfo without scheme, redirect, or private-address validation, allowing requests to loopback, link-local, cloud metadata, and private-network services and returning their response bodies. This issue is fixed in versions 1.9.13, 1.10.12, 2.0.22, 2.1.18, 2.2.7, and 2.3.2.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- fedify-dev · fedify>= 1.2.0, < 1.9.13; >= 1.10.0, < 1.10.12; >= 2.0.0, < 2.0.22; >= 2.1.0, < 2.1.18; >= 2.2.0, < 2.2.7; >= 2.3.0, < 2.3.2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Server-Side Request Forgery
- Vendor
- fedify-dev
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-62857 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.